Home > david.kidwell@noaa.gov

Projects

13

View Results

Products & Data

39

View Results

General Pages

2

View Results

Internships

0

 

Projects

Shallow Water Hypoxia: Tipping the Balance for Ind...

We are investigating the impacts of extreme daily fluctuations in oxygen and pH on fish and invertebrates in the Chesapeake Bay. The modeling tools we produce will improve the ability ...
Read More

The Coastal Recovery from Storms Tool (CReST): Mod...

We are developing a community modeling tool, based on field data, to inform impact and vulnerability assessments of dune and beach recovery following storms under a suite of sea level ...
Read More

Understanding and Predicting Changes in Coastal Ma...

We are developing marsh conservation and restoration guidance for the central coastal region of North Carolina from eight years of yet unpublished, continuous water-level data combined with field measurements of ...
Read More

News

Online Tool Visualizes Impacts of Sea Level Rise o...

An anchialine pool on the west coast of the island of Hawaii. Credit TNC. The west coast of the island of Hawaii has several anchialine pools—inland fish ponds with underground ...
Read More

Hypoxia Study Shows Fish Diet and Catchability Cha...

NCCOS sponsored research on hypoxia (low oxygen concentrations within the water column) finds that hypoxic conditions in the northern Gulf of Mexico have variable effects on fish diet, food webs, ...
Read More

Tenth Harmful Algal Bloom Symposium Highlights NCC...

Credit. 10th US Symposium on Harmful Algae. The 10th US Symposium on Harmful Algae, held November 3-8, 2019, focused on emerging harmful algal blooms (HABs) in the US, crossing the ...
Read More

Gulf of Maine Cyst Sampling Cruise Sets Stage for ...

A Carib Corer collects bottom sediment samples containing the HAB cysts. The samples are processed onboard and the cysts preserved for counting at a shore-based lab. Credit Mary Rider, NOAA ...
Read More

Florida Governor Appoints NCCOS Scientist to Red T...

Dr. Quay Dortch. Credit: NOAA. Governor Ron DeSantis has appointed NCCOS's Dr. Quay Dortch to the recently re-organized Florida Red Tide Task Force. The governor made the announcement at an ...
Read More

Impacts and Solutions to Gulf of Mexico Hypoxia Hi...

Shrimp boat underway in the Gulf of Mexico. Hypoxia is impacting commercial shrimp fishing. Credit NOAA Photo Library. With a record setting dead zone predicted this summer, Illinois Public Media ...
Read More

Grasses Shape and Protect Coastal Dunes in Differe...

A study supported by NCCOS has found that the dominant type of beach grass influences the shape of coastal sand dunes, which in turn influences how well those dunes protect ...
Read More

Products

Maps, Tools & Applications

No posts found.

Data & Publications

Eutrophication-induced acidification of coastal waters in the northern Gulf of Mexico: Insights into origin and processes from a coupled physicalbiogeochemical model

Nutrient inputs from the Mississippi/Atchafalaya River system into the northern Gulf of Mexico promote high phytoplankton production and lead to high respiration rates. Respiration coupled with water column stratification results in seasonal summer hypoxia in bottom waters on the shelf ...
Read More

Evaluating estuarine habitats using secondary production as a proxy for food web support

The management, restoration, and conservation of estuarine habitats would benefit from knowledge of habitat-specific functions that reflect important ecosystem services. Secondary production may provide a comprehensive metric of food web support because it synthesizes ­contributions of local primary production, food ...
Read More

Evidence of climate-driven ecosystem reorganization in the Gulf of Mexico

The Gulf of Mexico is one of the most ecologically and economically valuable marine ecosystems in the world and is affected by a variety of natural and anthropogenic phenomena including climate, hurricanes, coastal development, agricultural runoff, oil spills, and fishing ...
Read More

Extensive reproductive disruption, ovarian masculinization and aromatase suppression in Atlantic croaker in the northern Gulf of Mexico hypoxic zone

The long-term impacts on marine ecosystems of the recent dramatic worldwide increase in the incidence of coastal hypoxia are unknown. Here, we show widespread reproductive disruption in Atlantic croakers collected from hypoxic sites approximately 120 km apart in the extensive ...
Read More

Hypoxia-driven changes in the behavior and spatial distribution of pelagic fish and mesozooplankton in the northern Gulf of Mexico

Hypoxia (< 2 mg O2 l? 1) is a major global water quality and fisheries management issue in coastal ecosystems. Although the impact of hypoxia on benthic communities has been intensively studied, less is known about hypoxia's effect on pelagic ...
Read More

Landscape-Level Variation in Disease Susceptibility Related to Shallow-Water Hypoxia

Diel-cycling hypoxia is widespread in shallow portions of estuaries and lagoons, especially in systems with high nutrient loads resulting from human activities. Far less is known about the effects of this form of hypoxia than deeper-water seasonal or persistent low ...
Read More

Linking Coasts and Seas to Address Ocean Deoxygenation

Accelerated oxygen loss in both coastal and open oceans is generating complex biological responses; future understanding and management will require holistic integration of currently fragmented oxygen observation and research programmes ...
Read More

Macrobenthos and megabenthos responses to long-term, large-scale hypoxia on the Louisiana continental shelf

The macrobenthos and megabenthos responses to long-term, recurring hypoxia on the Louisiana continental shelf were compared at four locations with different historical (2000–2010) episodes of annual exposure to bottom-water hypoxia. Measurements of abundance, biomass, species diversity, and community composition of ...
Read More

Marsh macrophyte responses to inundation anticipate impacts of sea-level rise and indicate ongoing drowning of North Carolina marshes

In situ persistence of coastal marsh habitat as sea level rises depends on whether macrophytes induce compensatory accretion of the marsh surface. Experimental planters in two North Carolina marshes served to expose two dominant macrophyte species to six different elevations ...
Read More

Modeling the Population Effects of Hypoxia on Atlantic Croaker (Micropogonias undulatus) in the Northwestern Gulf of Mexico: Part 1 - Model Description and Idealized Hypoxia

We developed a spatially explicit, individual-based model to analyze how hypoxia effects on reproduction, growth, and mortality of Atlantic croaker in the northwestern Gulf of Mexico lead to population-level responses. The model follows the hourly growth, mortality, reproduction, and movement ...
Read More

General Pages

No posts found.

NOAA Internship Opportunities

No posts found.
Query time: 0.25 secs

About NCCOS

NCCOS delivers ecosystem science solutions for stewardship of the nation’s ocean and coastal resources to sustain thriving coastal communities and economies.

Stay Connected with NCCOS

Sign up for our quarterly newsletter or view our archives.